Eighty twelves is nine hundred and sixty.
One half is nine eighteenths. Nine eighteenths minus three eighteenths is six eighteenths, which is also one third.
Nine eighteenths is the same as one half. It's like 9 out of 18, and 1 out of 2.
9/18 or nine eighteenths is equivalent to the fraction 1/2 (one half).
9 twelves = 108 = 10,800%